Passives
 
    In electrical, computer or storage systems, passive components are those that do not require electrical power to operate (e.g., not capable of power gain). This could include the capacitors, resistors, inductors, and beads that do not require electrical power to operate but would exclude system components such as the power supply, fans, storage device, transistors, diodes and other controllers (called active components).

    The famous passive components manufacturing is Murata, TDK(EPCOS), Nippon Chemi-Con, TaiYo Yuden, Nichicon, Samsung Electro-Mechanics, KEMET, Walsin, Yageo, KOA, Fenghua Advanced, Cyntec and so on.